Transfer Lamination Breakaway Coating Inline Application

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Solution Overview

Problem

Current transfer lamination processes are costly and inefficient due to multiple manufacturing steps and the limited reuse and recycling of transfer films, which are typically made from difficult-to-recycle materials like polyethylene terephthalate, resulting in high disposal rates of waste plastic film.

Innovation Solution

The inline coating of a breakaway layer on a transfer film during the lamination process, where the film is bonded to a substrate before applying the breakaway layer, allowing for reuse and reducing manufacturing steps and costs, while also improving the uniformity of the coating.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If the breakaway layer is applied to the transfer film in a separate initial step, then the film can be prepared for lamination, but the manufacturing process becomes more complex and costly with multiple separate steps

Engineering Contradiction:

Improvemanufacturing process simplicityVSAvoidnumber of manufacturing steps

Core Design Contradiction:

Ease of manufactureVSDevice complexity

Solution Approach 1:

The patent combines the breakaway layer application step with the lamination process by applying the breakaway layer to the film while it is bonded to the substrate during the lamination operation. This merging of operations eliminates separate manufacturing steps and reduces overall process complexity while maintaining manufacturing simplicity.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The breakaway layer is applied to the film before the lamination process begins, but the application occurs as part of the lamination operation itself rather than as a separate preliminary step. This preliminary action is integrated into the main process flow, eliminating the need for separate equipment and steps.

Inventive Principle:

Principle #10Preliminary action

2Reliability

If the transfer film is used only a limited number of times, then the film can be reused, but disposal and recycling problems arise due to the difficulty of recycling polyester films

Engineering Contradiction:

Improvefilm reuse capabilityVSAvoiddisposal and recycling problems

Core Design Contradiction:

ReliabilityVSObject-generated harmful factors

Solution Approach 1:

The patent enables the transfer film to be reused multiple times by applying the breakaway layer during the lamination process, which allows the film to maintain its functionality across multiple cycles. This recovery and reuse approach eliminates the need to discard the film after limited use, thereby reducing disposal problems. The integrated breakaway layer application ensures the film remains suitable for repeated use without requiring recycling of the polyester material.

Inventive Principle:

Principle #34Discarding and recovering

3Productivity

If multiple separate manufacturing steps are used for transfer lamination, then each step can be optimized, but the overall process becomes more costly and time-consuming

Engineering Contradiction:

Improvemanufacturing efficiencyVSAvoidtotal process time

Core Design Contradiction:

ProductivityVSLoss of time

Solution Approach 1:

The patent merges the breakaway layer application with the lamination operation, allowing both operations to occur simultaneously in a single process step. This consolidation eliminates the time required for separate operations and reduces total manufacturing time while maintaining productivity through the integrated approach.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The breakaway layer application occurs continuously during the lamination process rather than as a discrete preliminary step. This continuous action ensures that the film is prepared for lamination as it is being laminated, eliminating idle time and improving overall manufacturing efficiency.

Inventive Principle:

Principle #20Continuity of useful action

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

This approach simplifies the manufacturing process, reduces costs, and enables the reuse of transfer films multiple times, minimizing disposal and recycling challenges by integrating the breakaway layer application into the lamination process, resulting in a more efficient and cost-effective method with improved coating uniformity.

Implementation Method 1

bonding a metallized first side of a film to a substrate

Methodology Applied

Scientific EffectAdhesion: Adhesive

Implementation Method 2

applying a breakaway coating to a second side of the film

Methodology Applied

Scientific EffectCoating/Deposition: Deposition (physical)

Implementation Method 3

The bonded film/substrate is then cured

Methodology Applied

Scientific EffectThermal curing: Heating

Data Source

PatentUS9005391B2Method and apparatus for transfer lamination

Publication Date: 2015.04.14 HAZEN PAPER CO

AI summary

An embodiment of the inventive method of transfer lamination bonding a first metallized side of a film to a substrate. Then a breakaway coating is applied to a second, non-metallized side of the film after the first metallized side has been bonded to the substrate. The bonded film and substrate are then placed in an oven. The film is then stripped from the substrate leaving metal from the film deposited on the substrate. The application of the breakaway coating is performed as an inline part of the transfer lamination process thereby providing an ease of manufacture presently unknown.